Lattice-strain-driven ferromagnetic ordering in La0.8Sr0.2MnO3 thin films

2004 ◽  
Vol 84 (5) ◽  
pp. 777-779 ◽  
Author(s):  
Y. P. Lee ◽  
S. Y. Park ◽  
V. G. Prokhorov ◽  
V. A. Komashko ◽  
V. L. Svetchnikov
Keyword(s):  
Thin Films ◽  
Lattice Strain ◽  
Ferromagnetic Ordering

scholarly journals Crystal Structure, Lattice Strain, Morphology, and Electrical Properties of SnO2 Nanoparticles Induced by Low Calcination Temperature

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Panya Khaenamkaew ◽  
Dhonluck Manop ◽  
Chaileok Tanghengjaroen ◽  
Worasit Palakawong Na Ayuthaya
Keyword(s):  
Thin Films ◽  
Electrical Properties ◽  
Calcination Temperature ◽  
Tin Dioxide ◽  
Lattice Strain ◽  
Dielectric Constants ◽  
Precipitation Method ◽  
Calcination Temperatures ◽  
Sensing Applications ◽  
Crystallite Sizes

The electrical properties of tin dioxide (SnO2) nanoparticles induced by low calcination temperature were systematically investigated for gas sensing applications. The precipitation method was used to prepare SnO2 powders, while the sol-gel method was adopted to prepare SnO2 thin films at different calcination temperatures. The characterization was done by X-ray diffraction, scanning electron microscopy (SEM), and atomic force microscopy (AFM). The samples were perfectly matched with the rutile tetragonal structure. The average crystallite sizes of SnO2 powders were 45 ± 2, 50 ± 2, 62 ± 2, and 65 ± 2 nm at calcination temperatures of 300, 350, 400, and 450°C, respectively. SEM images and AFM topographies showed an increase in particle size and roughness with the rise in calcination temperature. The dielectric constant decreased with the increase in the frequency of the applied signals but increased on increasing calcination temperature. By using the UV-Vis spectrum, the direct energy bandgaps of SnO2 thin films were found as 4.85, 4.80, 4.75, and 4.10 eV for 300, 350, 400, and 450°C, respectively. Low calcination temperature as 300°C allows smaller crystallite sizes and lower dielectric constants but increases the surface roughness of SnO2, while lattice strain remains independent. Thus, low calcination temperatures of SnO2 are promising for electronic devices like gas sensors.

Ferromagnetic ordering and electromagnons in microwave synthesized BiFeO3 thin films

2019 ◽  
Vol 475 ◽  
pp. 60-69 ◽  
Author(s):  
Waqar Azeem ◽  
Saira Riaz ◽  
Arfan Bukhtiar ◽  
S. Sajjad Hussain ◽  
Yongbing Xu ◽  
...  
Keyword(s):  
Thin Films ◽  
Bifeo3 Thin Films ◽  
Ferromagnetic Ordering

Growth of single-phase PrBa0.7Sr1.3Cu3O7 thin films and the role of lattice strain on the transport properties

1998 ◽  
Vol 72 (8) ◽  
pp. 981-983 ◽  
Author(s):  
Y. G. Zhao ◽  
Z. W. Dong ◽  
M. Rajeswari ◽  
R. P. Sharma ◽  
T. Venkatesan
Keyword(s):  
Thin Films ◽  
Transport Properties ◽  
Single Phase ◽  
Lattice Strain

Influence of Lattice Strain on Phase Separation and Percolative Behaviors in La0.325Pr0.3Ca0.375 MnO3 Thin Films

2015 ◽  
Vol 51 (11) ◽  
pp. 1-4
Author(s):  
Y. Y. Zhao ◽  
J. Wang ◽  
F. X. Hu ◽  
H. Kuang ◽  
Y. Liu ◽  
...  
Keyword(s):  
Thin Films ◽  
Phase Separation ◽  
Lattice Strain

Direct measurement of ferromagnetic ordering in biaxially strained LaCoO3 thin films

2010 ◽  
Vol 96 (8) ◽  
pp. 082510 ◽  
Author(s):  
R. F. Klie ◽  
T. Yuan ◽  
M. Tanase ◽  
G. Yang ◽  
Q. Ramasse
Keyword(s):  
Thin Films ◽  
Direct Measurement ◽  
Ferromagnetic Ordering
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